One problem related to engine shut off without warning has been reported for the 2014 Chevrolet Sonic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Chevrolet Sonic based on all problems reported for the 2014 Sonic.
Twice in one month the car engine shut off while I was driving. Power steering was also lost. Mileage approx. 31,000. I was able to restart the car after putting it in park. The first time, I was turning, pulling into a parking lot, so I was able to drift into a parking spot safely. Second time I was in small town bumper to bumper traffic. Took my foot off the brake and stepped on the gas and nothing happened, so I put it in park and restarted it and it seemed fine after that. Took it to dealer where I bought it, they did nothing as the car was not throwing any codes and no warning lights were on. Second garage I went to also could not find an issue so they did nothing. Took it to another dealership and the car stalled on them as they were parking it, right after I had dropped it off. They kept it for almost a week and drove it 61 miles and could not recreate the stalling. They checked the car thoroughly and nothing appeared to be wrong with it. They checked all recalls and bulletins, nothing mentioned in those. The car would also "bounce" up and down when I was stopped at a red light. That was happening more frequently once the engine troubles started. I got my car back last night from the other dealer and didn't notice any "bouncing" so maybe they fixed something when they were checking the car, however the invoice stated all they did was a 27-point inspection and alignment check. No charge to me as car is still under warranty but warranty runs out in 5 months.